Watch List notes:

The Roman Empire
"DIVVS IVLIVS" Comet Issues

Denarius, Spain, Caesaraugusta (?) circa 19-18 BC, AR 3.72 g. CAESAR – AVGVSTVS Oak-wreathed head r. Rev. DIVVS / IVLIVS Eight-rayed comet with tail upwards. C 100. BMC –. RIC 38a. CBN 1305.
An extremely rare variety. Struck on a very large flan and with a light iridescent tone,
a banker's mark on obverse, otherwise about extremely fine

Privately purchased from Harlan J. Berk.

This issue of the comet reverse with over/under legend is much more difficult than the previous lot. I have looked for years for a better one and never found a piece that came close to this. I could find no other listings for this variety in Coin Archives. MSG.